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| Refers to the diverse ways in which scientists study the natural world and propose explanations based on the evidence they gather. |
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| a possible explanation for a set of observations or answer to a scientific question |
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| The factor that may change in response to the manipulated variable. |
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| a statement that describes how to measure a variable or define a term |
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| Curiosity, Honesty, Open-Mindedness and Skepticism and Creativity |
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| composed of many cells that are specialized to do certain tasks |
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| A change in an organism's surroundings that causes the organisms to react |
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| the process of change that occurs during an organism's life to produce more complex organism |
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| the mistaken idea that living things can arise from nonliving sources |
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| The needs of Living Things |
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Water, Food, Living Space and Stable Internal Conditions
Homeostasis |
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| naming system Linnaeus used |
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| classification grouping that contains similar, closely related organisms |
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| a group of similar organisms that can mate with each other and produce offspring that can also mate reproduce |
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| Major Levels of Classification |
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Domain
Kingdom
Phylum
Class
Order
Family
Genus
Species |
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| Organisms are placed into domains and kingdoms based on their cell types, their ability to make food, and the number of cells in their bodies |
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| Organisms that has nucleus |
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| Organisms that has no nucleus |
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Protists
Fungi
Plants
Animals |
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All living things are made out of cells
Cells are the basic units of structure and function in living things
All cells are produced from other cells |
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Cell wall is a rigid layer of nonliving material that surrounds the cells of plants and some other organsims
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| controls what substances come into and out of the cell |
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| the instructions for directing the cell's functions |
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known as the powerhouse,
they convert energy in food molecules to energy the cell can use to carry out its function |
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| carry proteins and other materials from one part of the cell to another |
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| function as factories to produce proteins |
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| stores water, food, waste products and other materials |
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| capture energy from sunlight and use it to produce food for the cell |
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| receive proteins and other newly formed materials from the E.R package them, and distribute them to other parts of the cell |
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| small, round structures containing chemicals that break down certain materials in the cell |
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| colored chemical compounds that absorbs light |
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| small openings on the undersides of the leaves |
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Interphase
Prophase
Metaphase
Anaphase
Telophase
Cytokinesis |
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| cell grows, makes a copy of its DNA, and prepares to divide into two cells |
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chromatin in the nucleus condenses to form chromosomes.
move to opposites side of the nucleus |
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| chromosomes line up across the center of the cell |
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| two chromatids separate, and each chromatid becomes a new chromosomes |
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| chrmosomes begin to stretch out and lose their rodlike appearance |
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| the cell membrane pinches in around the middle of the cell. splits in two |
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Adenine to Thymine
Guanine to Cytosine
A to T
G to C |
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